IC 4574
| Galaxie IC 4574 | |
|---|---|
| SDSS-Aufnahme | |
| AladinLite | |
| Sternbild | Nördliche Krone |
| Position Äquinoktium: J2000.0, Epoche: J2000.0 | |
| Rektaszension | 15h 41m 59,2s [1] |
| Deklination | +28° 14′ 25″ [1] |
| Erscheinungsbild | |
| Morphologischer Typ | SBbc?[1] |
| Helligkeit (visuell) | 14,8 mag[2] |
| Helligkeit (B-Band) | 15,7 mag[2] |
| Winkelausdehnung | 0,3′ × 0,1′[2] |
| Positionswinkel | 20°[2] |
| Flächenhelligkeit | 10,8 mag/arcmin²[2] |
| Physikalische Daten | |
| Rotverschiebung | 0.032643 ± 0.000002[1] |
| Radialgeschwindigkeit | (9786 ± 1) km/s[1] |
| Hubbledistanz H0 = 73 km/(s • Mpc) |
(442 ± 31)e6 Lj (135,6 ± 9,5) Mpc [1] |
| Geschichte | |
| Entdeckung | Stéphane Javelle |
| Entdeckungsdatum | 25. Juli 1895 |
| Katalogbezeichnungen | |
| IC 4574 • PGC 55820 • CGCG 166-038 • 2MASX J15415925+2814247 • | |
IC 4574 ist eine Balken-Spiralgalaxie vom Hubble-Typ SBb im Sternbild Nördliche Krone am Nordsternhimmel. Sie ist schätzungsweise 442 Millionen Lichtjahre von der Milchstraße entfernt.
Das Objekt wurde am 25. Juli 1895 von Stéphane Javelle entdeckt.[3]
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